Tephrocactus articulatus is a species of
cactus in the subfamily
Opuntioideae of the plant family Cactaceae. They usually grow branches up to one foot tall with white flowers. Propagation is usually through cuttings. Stem segments easily break away and will root without special treatment. Plants may also be grown from seeds. Spring blooms open at end-of-evening nautical twilight, and close shortly after sunrise.
They originate in
Argentina, but are cultivated in outdoor landscaping in warm desert climates such as
Phoenix, Arizona.
Varieties have been recognized, including var. inermis (spruce cone cactus) and var. papyracanthus (paper spine cholla cactus), but none are accepted by
Plants of the World Online.[1]
Images
In Springs Preserve garden, Las Vegas
"var. diadematus"
"var. diadematus" details
"var. inermis"
Subspecies
Tephrocactus articulatus var. articulatus
Tephrocactus articulatus var. oligocanthus(Speg.) Backeb.
Tephrocactus articulatus var. strobiliformisBackeb.